C12B-1 roller chain with straight side plate: 1, Material: 40Mn 2, Color: Natural 3, ... kind of chain has many models C12B-1 roller chain with straight side plate' specification:1, Plate material: 40Mn; Pin: 40Cr ... are available.4, It is made by advanced heat treatment with competitive price.5, Packing: a chain + a polybag + ... 500M7, Delivery time: 50 days. C12B-1 roller chain with straight side plate